Class 3 Computer Worksheet: Class Test

Computer lesson 18: Class 3 computer test · Set 504 · 40 questions

Remember (Find the topic, use the idea): Read the question and find its topic: hardware or software, units, memory, files, or editing text. Use that lesson’s idea — can you touch it, multiply to change units, RAM forgets, which file action, which shortcut. For unit sums, write the rule first (1 byte = 8 bits, 1 KB = 1024 bytes) and then multiply.

1. 1.💡 What is the smallest unit of computer memory? (a) byte (b) bit (c) GB (d) KB
2. 2.True or false: a calculator app is hardware. (a) True (b) False
3. 3.📂 What holds many files together, like a school bag holds books? (a) a pixel (b) a mouse (c) a folder (d) a speaker
4. 4.Which of these is true of storage (like a hard disk)? (a) keeps your saved files (b) is the working memory (c) holds apps that are open (d) loses data when off
5. 5.🔢 A bit can be only 0 or ___. (a) 5 (b) 2 (c) 9 (d) 1
6. 6.True or false: Ctrl+Z is the shortcut to copy. (a) False (b) True
7. 7.What does it mean to create a file? (a) change its name (b) make a brand-new one (c) see what is inside (d) store your work
8. 8.🏷️ Every file has a ___ so we can find it. (a) name (b) smell (c) weight (d) taste
9. 9.📋 You want the same sentence in two places. What do you use first? (a) Undo (b) Delete (c) Copy (d) Backspace
10. 10.🧾 Software is a set of ___ for the computer. (a) instructions (b) screws (c) buttons (d) wires
11. 11.🔍 Which is the odd one out? (a) hard disk (b) memory card (c) solid-state drive (d) keyboard
12. 12.💾 How many bits are there in 12 bytes?
13. 13.🔍 Which is the odd one out? (a) scanner (b) hard disk (c) pen drive (d) memory card
14. 14.🔍 Which is the odd one out? (a) a monitor (b) a computer game (c) a scanner (d) a pen drive
15. 15.💾 How many GB are there in 1 TB?
16. 16.Which of these is software? (a) a monitor (b) a webcam (c) a mouse (d) a calculator app
17. 17.True or false: a mouse is software. (a) False (b) True
18. 18.True or false: a pen drive is software. (a) False (b) True
19. 19.True or false: to delete a file means to throw it away. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a music player app (b) a web browser (c) a scanner (d) a calculator app
21. 21.⌨️ In a word processor, what does Ctrl+Z do? (a) undo (b) redo (c) paste (d) save
22. 22.⚡ Which is faster for the computer to work with? (a) a memory card (b) a pen drive (c) a printer (d) RAM
23. 23.📁 Which word means to “get rid of it” (for a file or folder)? (a) move (b) delete (c) rename (d) save
24. 24.💾 How many GB are there in 2 TB?
25. 25.Which shortcut do we press to select all? (a) Ctrl+A (b) Ctrl+Y (c) Ctrl+Z (d) Ctrl+V
26. 26.✋ Which can we touch: hardware or software? (a) hardware (b) software
27. 27.📄 What does a word processor help us do? (a) water plants (b) cook food (c) fly a kite (d) type and edit text
28. 28.💾 Which is smaller: 1 byte or 1 MB? (a) 1 byte (b) 1 MB
29. 29.True or false: Ctrl+V is the shortcut to paste. (a) False (b) True
30. 30.True or false: a memory card is a storage device. (a) True (b) False
31. 31.True or false: a music player app is hardware. (a) False (b) True
32. 32.Which of these is hardware? (a) a music player app (b) a web browser (c) a paint program (d) a printer
33. 33.📄 A file name ends in .jpg. What is it most likely? (a) a picture (b) a sound (c) a document (d) a video
34. 34.Which shortcut do we press to paste? (a) Ctrl+Z (b) Ctrl+C (c) Ctrl+X (d) Ctrl+V
35. 35.💾 Which is bigger: 1 bit or 1 KB? (a) 1 KB (b) 1 bit
36. 36.💾 Which is smaller: 1 byte or 1 TB? (a) 1 TB (b) 1 byte
37. 37.🔍 Which is the odd one out? (a) pen drive (b) hard disk (c) microphone (d) memory card
38. 38.🧩 Is a mouse hardware or software? (a) software (b) hardware
39. 39.Which file ending is a sound? (a) .txt (b) .png (c) .jpg (d) .mp3
40. 40.Which of these is hardware? (a) an operating system (b) a calculator app (c) a speaker (d) a typing tutor

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